Threshold Amplitude and Frequency for Ocular Tissue Release from a Vibrating Instrument: An Experimental Study
During retinal pigment epithelium (RPE) and choroid graft translocation in the treatment of patients with exudative age-related macular degeneration, the adhesion of the graft to the translocation instrument complicated its submacular release. Vibration of the instrument improved the release of the...
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| Veröffentlicht in: | Investigative ophthalmology & visual science 2008-04, Vol.49 (4), p.1629-1632 |
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| container_title | Investigative ophthalmology & visual science |
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| creator | Maaijwee, Kristel Koolen, Twan Rosenbrand, Dagmar Jacobs, Elmer Kleinheerenbrink, Sander Knulst, Arjan Bos, Joop Holland, Wim P Brouwer, Alex van Meurs, Jan C Schutte, Sander |
| description | During retinal pigment epithelium (RPE) and choroid graft translocation in the treatment of patients with exudative age-related macular degeneration, the adhesion of the graft to the translocation instrument complicated its submacular release. Vibration of the instrument improved the release of the graft. This study was conducted to validate the effectiveness of the principle of vibration and to determine the threshold amplitude and frequency required for development of an optimized instrument.
An experimental in vitro model with fresh porcine RPE-choroid grafts was used. Release of the graft was studied by a masked observer for amplitudes in the range of 0.05 to 1.2 mm and frequencies in the range of 25 to 200 Hz in the horizontal plane.
The minimum threshold amplitude required to release the graft was approximately 0.15 mm from a frequency of 100 Hz and higher.
This study confirmed the clinical experience that vibration of an instrument induces the release of the RPE-choroid graft. The minimum threshold amplitude and frequency needed for optimum tissue release were estimated. |
| doi_str_mv | 10.1167/iovs.07-1220 |
| format | Article |
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An experimental in vitro model with fresh porcine RPE-choroid grafts was used. Release of the graft was studied by a masked observer for amplitudes in the range of 0.05 to 1.2 mm and frequencies in the range of 25 to 200 Hz in the horizontal plane.
The minimum threshold amplitude required to release the graft was approximately 0.15 mm from a frequency of 100 Hz and higher.
This study confirmed the clinical experience that vibration of an instrument induces the release of the RPE-choroid graft. The minimum threshold amplitude and frequency needed for optimum tissue release were estimated.</description><identifier>ISSN: 0146-0404</identifier><identifier>ISSN: 1552-5783</identifier><identifier>EISSN: 1552-5783</identifier><identifier>DOI: 10.1167/iovs.07-1220</identifier><identifier>PMID: 18385084</identifier><identifier>CODEN: IOVSDA</identifier><language>eng</language><publisher>Rockville, MD: ARVO</publisher><subject>Animals ; Biological and medical sciences ; Choroid - transplantation ; Eye and associated structures. Visual pathways and centers. Vision ; Fundamental and applied biological sciences. Psychology ; Medical sciences ; Models, Theoretical ; Ophthalmologic Surgical Procedures - instrumentation ; Ophthalmology ; Pigment Epithelium of Eye - transplantation ; Sensory Thresholds ; Swine ; Vertebrates: nervous system and sense organs ; Vibration</subject><ispartof>Investigative ophthalmology & visual science, 2008-04, Vol.49 (4), p.1629-1632</ispartof><rights>2008 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c350t-9aaf9b0f4c815258e874186b841f0ea7a5e3d963c88cf072931ce89a92163c63</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,778,782,27913,27914</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=20277915$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/18385084$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Maaijwee, Kristel</creatorcontrib><creatorcontrib>Koolen, Twan</creatorcontrib><creatorcontrib>Rosenbrand, Dagmar</creatorcontrib><creatorcontrib>Jacobs, Elmer</creatorcontrib><creatorcontrib>Kleinheerenbrink, Sander</creatorcontrib><creatorcontrib>Knulst, Arjan</creatorcontrib><creatorcontrib>Bos, Joop</creatorcontrib><creatorcontrib>Holland, Wim P</creatorcontrib><creatorcontrib>Brouwer, Alex</creatorcontrib><creatorcontrib>van Meurs, Jan C</creatorcontrib><creatorcontrib>Schutte, Sander</creatorcontrib><title>Threshold Amplitude and Frequency for Ocular Tissue Release from a Vibrating Instrument: An Experimental Study</title><title>Investigative ophthalmology & visual science</title><addtitle>Invest Ophthalmol Vis Sci</addtitle><description>During retinal pigment epithelium (RPE) and choroid graft translocation in the treatment of patients with exudative age-related macular degeneration, the adhesion of the graft to the translocation instrument complicated its submacular release. Vibration of the instrument improved the release of the graft. This study was conducted to validate the effectiveness of the principle of vibration and to determine the threshold amplitude and frequency required for development of an optimized instrument.
An experimental in vitro model with fresh porcine RPE-choroid grafts was used. Release of the graft was studied by a masked observer for amplitudes in the range of 0.05 to 1.2 mm and frequencies in the range of 25 to 200 Hz in the horizontal plane.
The minimum threshold amplitude required to release the graft was approximately 0.15 mm from a frequency of 100 Hz and higher.
This study confirmed the clinical experience that vibration of an instrument induces the release of the RPE-choroid graft. The minimum threshold amplitude and frequency needed for optimum tissue release were estimated.</description><subject>Animals</subject><subject>Biological and medical sciences</subject><subject>Choroid - transplantation</subject><subject>Eye and associated structures. Visual pathways and centers. Vision</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Medical sciences</subject><subject>Models, Theoretical</subject><subject>Ophthalmologic Surgical Procedures - instrumentation</subject><subject>Ophthalmology</subject><subject>Pigment Epithelium of Eye - transplantation</subject><subject>Sensory Thresholds</subject><subject>Swine</subject><subject>Vertebrates: nervous system and sense organs</subject><subject>Vibration</subject><issn>0146-0404</issn><issn>1552-5783</issn><issn>1552-5783</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNpFkEFr3DAQRkVpaDZpbz0XXdpTnYxkyZJ7W0KSBgKBZOlVaOVRVkW2t5Kd7f77asnSnIYZHh_fPEI-M7hgrFGXYXzJF6Aqxjm8IwsmJa-k0vV7sgAmmgoEiFNylvNvAM4Yhw_klOlaS9BiQYbVJmHejLGjy34bwzR3SO3Q0ZuEf2Yc3J76MdEHN0eb6CrkPCN9xIg2I_Vp7Kmlv8I62SkMz_RuyFOaexymH3Q50Ou_W0zhsNpIn0r0_iM58TZm_HSc52R1c726-lndP9zeXS3vK1dLmKrWWt-uwQunmeRSo1aC6WatBfOAVlmJddc2tdPaeVC8rZlD3dqWs3Js6nPy7TV2m8byRZ5MH7LDGO2A45yNAqFq4LqA319Bl8acE3qzLYVt2hsG5qDXHPQaUOagt-BfjrnzusfuDT76LMDXI2Czs9EnO7iQ_3McuFItk28FN-F5swsJTe5tjCWWmd1uJ1ojDGvKX_8AT7mRFg</recordid><startdate>20080401</startdate><enddate>20080401</enddate><creator>Maaijwee, Kristel</creator><creator>Koolen, Twan</creator><creator>Rosenbrand, Dagmar</creator><creator>Jacobs, Elmer</creator><creator>Kleinheerenbrink, Sander</creator><creator>Knulst, Arjan</creator><creator>Bos, Joop</creator><creator>Holland, Wim P</creator><creator>Brouwer, Alex</creator><creator>van Meurs, Jan C</creator><creator>Schutte, Sander</creator><general>ARVO</general><general>Association for Research in Vision and Ophtalmology</general><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>20080401</creationdate><title>Threshold Amplitude and Frequency for Ocular Tissue Release from a Vibrating Instrument: An Experimental Study</title><author>Maaijwee, Kristel ; Koolen, Twan ; Rosenbrand, Dagmar ; Jacobs, Elmer ; Kleinheerenbrink, Sander ; Knulst, Arjan ; Bos, Joop ; Holland, Wim P ; Brouwer, Alex ; van Meurs, Jan C ; Schutte, Sander</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c350t-9aaf9b0f4c815258e874186b841f0ea7a5e3d963c88cf072931ce89a92163c63</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2008</creationdate><topic>Animals</topic><topic>Biological and medical sciences</topic><topic>Choroid - transplantation</topic><topic>Eye and associated structures. Visual pathways and centers. Vision</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Medical sciences</topic><topic>Models, Theoretical</topic><topic>Ophthalmologic Surgical Procedures - instrumentation</topic><topic>Ophthalmology</topic><topic>Pigment Epithelium of Eye - transplantation</topic><topic>Sensory Thresholds</topic><topic>Swine</topic><topic>Vertebrates: nervous system and sense organs</topic><topic>Vibration</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Maaijwee, Kristel</creatorcontrib><creatorcontrib>Koolen, Twan</creatorcontrib><creatorcontrib>Rosenbrand, Dagmar</creatorcontrib><creatorcontrib>Jacobs, Elmer</creatorcontrib><creatorcontrib>Kleinheerenbrink, Sander</creatorcontrib><creatorcontrib>Knulst, Arjan</creatorcontrib><creatorcontrib>Bos, Joop</creatorcontrib><creatorcontrib>Holland, Wim P</creatorcontrib><creatorcontrib>Brouwer, Alex</creatorcontrib><creatorcontrib>van Meurs, Jan C</creatorcontrib><creatorcontrib>Schutte, Sander</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Investigative ophthalmology & visual science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Maaijwee, Kristel</au><au>Koolen, Twan</au><au>Rosenbrand, Dagmar</au><au>Jacobs, Elmer</au><au>Kleinheerenbrink, Sander</au><au>Knulst, Arjan</au><au>Bos, Joop</au><au>Holland, Wim P</au><au>Brouwer, Alex</au><au>van Meurs, Jan C</au><au>Schutte, Sander</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Threshold Amplitude and Frequency for Ocular Tissue Release from a Vibrating Instrument: An Experimental Study</atitle><jtitle>Investigative ophthalmology & visual science</jtitle><addtitle>Invest Ophthalmol Vis Sci</addtitle><date>2008-04-01</date><risdate>2008</risdate><volume>49</volume><issue>4</issue><spage>1629</spage><epage>1632</epage><pages>1629-1632</pages><issn>0146-0404</issn><issn>1552-5783</issn><eissn>1552-5783</eissn><coden>IOVSDA</coden><abstract>During retinal pigment epithelium (RPE) and choroid graft translocation in the treatment of patients with exudative age-related macular degeneration, the adhesion of the graft to the translocation instrument complicated its submacular release. Vibration of the instrument improved the release of the graft. This study was conducted to validate the effectiveness of the principle of vibration and to determine the threshold amplitude and frequency required for development of an optimized instrument.
An experimental in vitro model with fresh porcine RPE-choroid grafts was used. Release of the graft was studied by a masked observer for amplitudes in the range of 0.05 to 1.2 mm and frequencies in the range of 25 to 200 Hz in the horizontal plane.
The minimum threshold amplitude required to release the graft was approximately 0.15 mm from a frequency of 100 Hz and higher.
This study confirmed the clinical experience that vibration of an instrument induces the release of the RPE-choroid graft. The minimum threshold amplitude and frequency needed for optimum tissue release were estimated.</abstract><cop>Rockville, MD</cop><pub>ARVO</pub><pmid>18385084</pmid><doi>10.1167/iovs.07-1220</doi><tpages>4</tpages></addata></record> |
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| subjects | Animals Biological and medical sciences Choroid - transplantation Eye and associated structures. Visual pathways and centers. Vision Fundamental and applied biological sciences. Psychology Medical sciences Models, Theoretical Ophthalmologic Surgical Procedures - instrumentation Ophthalmology Pigment Epithelium of Eye - transplantation Sensory Thresholds Swine Vertebrates: nervous system and sense organs Vibration |
| title | Threshold Amplitude and Frequency for Ocular Tissue Release from a Vibrating Instrument: An Experimental Study |
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